I think Florida Fan is correct!I’m rather sure it is a tick. I don’t dare say Ixodes sp. but it looks like a “hard” tick.It sheds its exuvium as a nymph (six legs) to become adult (eight legged).Very impressive video!

Well, it looks like a nymph stage of a hard tick (class Ixodidae). It has 4 pairs of legs and a prominent dorsal shield (scutum).just a hunch....I think it's a female hard tick because, unlike male hard ticks, its scutum does not cover its dorsal cavity completely.Yet, I'm not absolutely sure about that.

Thank you Anon, on full screen if one clicks at the right moment when the tick turns its belly up, the inverted V of the anal groove can be easily seen. This confirms the female (scutum covering only anterior abdomen) Ixodes nymph with three pairs of leggs shedding its exovium to become an adult female tick with four pairs of legs.Florida Fan

It would be a nymph of Ixodes sp., (since we can see the distinct anal groove embracing the anus anteriorly, Prostriata section), emerging from a larval exuvium with six legs. Also, if it were a female it should have porous areas at the basis capituli; they do not appear to be visible.Fantastic video, by the way.

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